"Games have become the topic of late. Osmos developers
wonder whether there is enough market share for GNU+Linux game
ports to be worth the cost, but they aren't the only ones. It's
been discussed time and time again, is a GNU+Linux -- or really any
Unix or Unix-like -- port worth it?
"The "Humble Indie Bundlenewwin" where you could "name your own
price" for a collection of games -- games available on multiple
platforms -- shows that not only is there a market for GNU+Linux
ports, but apparently a whole quarter of the market."